To get more insight into the valence shell structure of cyclopropyl conjugated 1,2-diketones, 2 we have studied both the He I photoelectron spectra and the ultraviolet absorption spectra of dicyclopropylethanedione (I) and l-cyclopropyl-1,2-propanedione (II). The He I photoelectron spectra (fig.11 w
Photodihydrodimerization of some cyclopropyl conjugated 1,2-diketones
โ Scribed by J. Kelder; H. Cerfontain
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 212 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
We have studied the behaviour of three cyclopropyl conjugated 1,2-diketones (I a, b, and c) ' in isopropanol upon irradiation with a Philips SP 500 W mercury lamp (with 436 nm as the most intense line). For comparison we extended this study to three non-cyclopropyl containing 1,2-diketones, viz. biacetyl (Id), 1-phenyl-1,2-propanedione (I e) and benzil (I f).
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